Never frown , even when you are sad , because you nev er know who falling in .
就算你不快乐也不要皱眉,因为你永不知道谁会爱上你。
Nev er frown , even when you are sad , because you never know who is falling in love with your smile .
纵然伤心,也不要愁眉不展,因为你不知是谁会爱上你的笑容。
Beethoven was the link with a nev period . He used clashing chords-dissonance-in a way that was shocking in his day , and he initiated changes in the four movements of the symphony .